Shank for separable link cuff-buttons.



c. E. sxoos. SHANK FOR SEPARABLE LINK' CUFF BUTTONS.

APPLICATION FILED FEB. I6, 1916.

Patented June 20,1916.

WW M m v d 6 monNH-i 1 To all whom "it may mm.-

cARLfn. sKooG',""o r PROVIDENCE, rioDE Is A vp, Ass e voR To PARKS BRos. &

' a ROGERS, or rnovrnmvcn, HonnIsLAnD.

sHANKFoR sErARjABLE Linn corn-Rowena Application filed February 16,1913. Serial No. 78,608.

. Be it known'that I, CARL E. Snood, a citizen of the, United States, and'a res dent of Providence, in the county of Frovr I dence and State of-Rhode Island, have in vented new and Improved Shanks for :Separable Link Cuff-Buttons, of which the f ol-. lowing is a full, clear, and exact description.

Among the principal objects which the present invention has in view are; to'provide one-piece shanks having male and female engaging portions; to provide a sprmg engaging member for the female portion, the resiliency of which is incorporated therein; and to provide button shanks, ofthe character mentioned adapted to be manufactured by automatic machinery. V

Drawings.-Figure 1 is a view of a metal blank from which the button shanks are made; Figs. 2 and 3- are vertical sections of metal members, showing the initial steps in the process of making the-shanks; F gs. 1

- to 8 inclusive are vertical sections'of metal I shanks when constructed in accordance with shank; Fig. 12 is a vertical section ofthe' members, showing the progressive steps in the formation of the female fastening shank; Fig. 9 is an enlarged top view of the female shank, the dotted lines in said figure indicating thewidth of the saw cut forming-- the 1 gripping jaws of the female shank;

- Fig.10 is a similar view, showing the female shank after the saw cut hasbeen made and when the shank is completed; Fig. 11 isa vertical section showing the metal member ina'preliminary stage offorming a male completed male shank; Fig. 13 is a cross secof cufi' buttons constructed 1 and lines in said figure being used to indicate Description.- As seen in the drawings, 7

the present invention, are formed from circular blanks of metal, asshown in Fig. I of the drawings. A series of operations are performed on these blanks to mold the same to theshapes shown in cross section by Figs. 2 and 3 of the drawings. The shapes as shown in Fig.3 of the drawings are then either punched to form crown openings 18, as seen best in Fig. 9 of the drawings, or are I, pressed to form nibs 19, as shown best in Fig. 11 of the drawings. a -1 Fig. '10 of the drawings.

"lines'in Fig. 9 -of the" drawings, and by the completedsaw-cutf24,as seen in Fig. 10 of j present invention is principally con-f cerned' with the manufacture of whatis herein termed the female shank. In order to secure the requisite resiliency in the grip ping portions; thereof, the metal forming the throat 20 of the shank and the under side--21 are hammered to temper the same to provide thenecessary resiliency therein for the closure of the jaw members as herein described. With this purpose in view, the shank head and the opening 18 in the upper side thereof, as originally formed, are slightly elliptical or elongated. "In this TED STATES *PAT OFFICE.

Specification bf Letters mat. Patented June 20, 1916.

manner is, provided the necessary excess of metal in the upper side 22 of the shank, so that when permitted to spring together, the side portions thereof form the normalcircular fastener opening 23, as seen best To guide the operator in making the saw-cut 24, the opening 18 is provided-with a-nick 25.

Inv the subsequentoperations wherein are formed the throat 20. and the shank head having the under side 21 and upper side-22, sa1d throat is forced into a true cylindrical to draw the metal tofa circular shape corresponding i'withflthe curvature of the cylindrical throat 20. This tension is relieved'when the saw-cut 2 1- is madefin the said head, by

so form, Owing to this, a tension in the metal I forming the shank head is-produced, tendingpermitting theflmetal: at thesides of the sawcut to spring together to partlyclosesaid saw-cut, as will beiseen bycomparison of the' propos'ed saw-cut, as indicated by dotted the drawings.

The nib 19fwith which the'maleshank is provided ispressed up from the head of the shanlnas shown best in Fig. 12 of the draw- I therein to receive'the edges of the resilient" nib is forced through the opening 21 therein.

2 Claims:

"ings The nib 19"has a throat 26 formed ,side portiOnS of the female shank when thev V V 1. A shankas characterized comprising a 1 laterally extended hollow head having under and upper'sides, saidupper side having a central opening and slots radiating therefrom, the metal of saidhead being tempered to form separable resilient'side portions for in said opening.

gripping a throated member when inserted V flange, a hollow head having juxtaposed upper and lower sides, said upper side having a central opening, and slots radiating therefrom to the periphery of said head to form separable resilient side portions for gripping a throated member when inserted in said opening, in combination with a second one-piece shank having a flange base, a head, and throat portion corresponding with the first-mentioned shank and provided with a solid throated nib integrally formed with and extended from the center of said head, said nib being insertible in said opening and adapted to slightly separate the resilient side portions of the first-mentioned shank during the passage therethrough.

3. A onepiece shank embodying a base flange, a hollow head laterally extended, and

a throated section separating said flange and head, said head having an upper side and a lower side, said sides being centrally spaced apart, said upper side having a central open-- ing and tWo slots alined and extending radially from said opening and encompassing the outer edges of said head, the metal comprising said head being rendered resilient to permit the portions of said upper side to separate for the passage of a nib of a companion shank to hold the same;

In testimony whereof I. have signed my name to this specification in the presence of two subscribing witnesses;

CARL E'. SKOOG. lVitnesses:

MARY L. IIEAD, CHARLES P. THOMPSON.

Copies of this patentmay be' obtained for five cents each, by; addressing; the- "Commissioner or Fateata, Washington, D110." 

